5-10 L for a typical domestic plant room. Estimate 1 L per 5 m of 50 mm pipework.

Pour into pool or pipes?

Pipes only. Never pour into pool water.

Down to what temperature?

Approximately -25 C at 50% concentration. Sufficient for UK and most of Europe.

Pre-mixed or concentrate?

Pre-mixed at 50%. No dilution needed; pour directly.

Do I need this if I have winteriser?

Yes. Winteriser is for water chemistry; antifreeze is for pipework. Different jobs.

What is the active ingredient?

Propylene glycol at 50% in deionised water with corrosion inhibitor.

Why propylene not ethylene?

Propylene glycol is non-toxic and food-grade; ethylene is toxic. Pool antifreeze must be propylene.

Will it damage rubber seals?

No. Propylene glycol is compatible with EPDM, NBR and silicone seals used in pool plumbing.

Foam at spring opening?

Drain pipework fully; rinse with fresh water; check pump body.

Antifreeze ran out over winter?

Top up next year; check pipe end caps.

Antifreeze vs draining pipework dry?

Dry pipework still holds residual water in low spots and U-bends. Antifreeze covers what drainage misses.

Pool antifreeze vs car antifreeze?

Pool grade is propylene glycol (non-toxic); car grade is usually ethylene glycol (toxic). Never substitute car for pool.

Pool Pipe Antifreeze - Non-Toxic Propylene Glycol

Name: Pool Pipe Antifreeze - Non-Toxic Propylene Glycol
Brand: ClearSpa
SKU: pw-2
Availability: InStock
Rating: 4.5 (4 reviews)

Non-toxic propylene glycol pipe antifreeze for swimming pool plant rooms. Prevents pump, heater and pipework cracking through winter freeze. Pre-mixed for direct pour.

Prevents freezing in pool pipework, pumps and heaters down to -25 C.
Pre-mixed propylene glycol for direct pour, no dilution needed.
Non-toxic; safe in domestic pool plant rooms.
Compatible with all pool plumbing materials.
Easy to flush at spring opening.